I am currently porting some iOS games from Objective-C to Swift, which involves rewriting a lot of code. While doing this, I stumbled upon something interesting.
I am currently creating two new games for iOS. One is made in Swift and SpriteKit, while the other is made in Objective-C and UIKit.
UPDATE 2017-01-25: Since I wrote this post, much better alternatives are now available for Swift. My favorite is Dip. A second option is Swinject. I really like Dip, but you should check out both and see which suits you best.
Note: Crittercism has shut down. A great alternative to Crittercism, in 2017, is Fabric.
I use Parallels Desktop to run Windows from a dedicated partition on my Mac. It works great, but requires some setup.